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(NoModeL) I. V. -WARNER.

Steam Balance Valve and Cut-Off. No. 232,426. Patented Sept. 21,1880.

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UNITED STA ES ATENT met.

ISRAEL v. WARNER, on MILAN, OHIO, ASSIGNOR on ONE-HALF on HIS RIGHT TOA. J. MOWRY, OF SAME PLACE.

STEAM BALANCE-VALVE AND CUT-OFF.

SPECIFICATION forming part of Letters Patent No. 232,426, datedSeptember 21, 1880.

Application filed May 26, 1880. (No model.)

To all whom it may concern Be it known that I, IsRAnLW. WARNER, ofMilan, in the county of Erie and State of Ohio, have invented newlandusefulImprovements in Steam Balance-Valves and Gut-Offs, of whichthelfollowing is ajdesoription,reference being had to the accompanyingdrawings, making a part of this specification, in which Figure 1 is aperspective view of the valvechest. Fig. 2 is a plan view of the inside.Fig. 3 is a longitudinal section. Fig. 4 is a transverse section. Fig. 5is a detached section.

Like letters of reference refer to like parts in the several views.

This invention is a balance steam-valve so constructed as to work withbut little friction, and which valve can be placed in thejsteamchest ofany ordinary steam-engine in place of the slide-valve without making anyessential alteration of said steam-chest or valve-stem.

A more full and complete description of the valve alluded to is asfollows In the drawings, A represents the steamchest of anyleommonengine. B and O are the inductionports, and D the eduction or exhaustport corresponding to the induction and eduction ports of the cylinder,in open relation with which the ports are arranged. In said chest issecured a valve-seat, E, provided with portslF, G, and H, correspondingto the induction and eduction ports alluded to, and with which they arein open relation.

l is the valve-stem, whereon are screwed the valves J and K. On the stemare also screwed the cut-off valves A B, respectively, in close relationto the valves J and K, as shown in Figs. 3 and 5. Said valves arecircular in form and fitted in the bore of the valveseat, as seen inFigs. 4. and 5, and work therein reciprocally by the eccentricsubstantially as; follows: The position of the valves J and K, as shownin Fig. 3, is such as when a full head of steam has just beenadmitted tothe cylinder through the way 0 and port H and is exhausting throughltheports F and G, as indicated by the arrows. it will be observed that inthis position of the valves the valve K closes the passage-way in thebridge L of the valve-seat, thereby shutting off the live steam from theexhaust-port G, and that the valve J shuts off the live steam from theport F, so that a free exhaust may be had of the steam from that end ofthe cylinder. On thereaction of the valves the valve K closes the way 0,and the valve J closes the way 0 of the bridge N. This reverse movementof the valves admits the live steam into the cylinder through the port Fwhile the spent steam is exhausting at the opposite end of the cylinderthrough the ports H and G, and so on alternately as the valves move fromright to left and from left to right. The ports are opened and closed bythe valves J and K for the induction and eduction of steam to-thecylinder;

To workithe fsteam expansively is the purpose of the valves A and B.Said valves may be so adjusted in their relation, respectively, to thevalves J and K as to cut off the a steam from said valves J and K moreor less, as may be desired, by screwing them nearer to or away fromthem, as the case may be. When the valve J has moved to theright acertain distance, the cut-off valve A follows and closes the steamway ofsaid valve J, allowing the steam in the cylinder to act expansively uponthe piston. In due time the cut-off valve B opens and admits steam tothe valve K, which steam, as the valve moves to the left the samedistance above alluded to, is cut off by the valve B, and so onalternately'the valves cut off steam at each stroke of the valves. Thevalves J and K may be given more or less lead by taking the cover fromthe valve-chest and adjusting said valves on the rod or stem, for bytheir being screwed thereon the most exact amount of leadcan be obtainedto them.

The valve-seat E is so constructed that it can be removed from thesteam-chest without taking the ohestfrom the cylinder. The cover needsonly to be removedfjand the valve-seat and valves can be liftedtherefrom. The valveseat is kept in place longitudinally by set screwsd, and vertically by the screws 0.

Steam may be admitted into the chest through the top or at the sides, ascircumstances may determine. The pressure of steam being alike at eachend of the valves, they are consequently equally balanced, and therefore2 ear/me work with little frictional resistance in their I adjustable,constructed and arranged to oper- IO seats. ate conjointly,substantially as described, and

What I claim as my invention, and desire to for the purpose specified.secure by Letters Patent, is- In testimony whereof I affix my signaturein I 5 The combination of the steam-chest A, valvepresence of twowitnesses.

seat E, provided with induction and eduction ISRAEL V. WARNER.

ports, steainways c c, with their respective valves J K and cut-offvalves A and B, and screw valve-rod I, on which said valves areWitnesses:

J. H. BURRIDGE, JAMES W. FIELD.

